Collapse Load Analysis for Plates and Shells.

Abstract

This report presents a theoretical foundation, computational procedures, and a computer program for the analyses of bifurcation or collapse of circular, cylindrical panels and rectangular plates. Discretization is accomplished via a variable-spacing, orthogonal, finite-difference grid using the principle of total potential energy. The modified Newton-Raphson iterative procedure is used to generate nonlinear load-deflection curves and a separate branch of the program provides a bifurcation analysis based on linear, prebuckling behavior. The program is capable of handling rectangular cut-out and initial geometric imperfections; a variety of zero force and zero displacement boundary conditions; and point loads, line loads, and distributed loads in transverse, longitudinal and circumferential directions, as well as axial end-compression. (Author)

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1979
Accession Number
ADA071649

Entities

People

  • Kailasam Satyamurthy
  • Nelson R. Bauld Jr.

Organizations

  • Clemson University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Birds
  • Composite Materials
  • Computer Programs
  • Computers
  • Elastic Properties
  • Equations
  • Fiber Reinforced Composites
  • Grids
  • Laminates
  • Materials
  • Mechanics
  • Modulus Of Elasticity
  • Poisson Ratio
  • Potential Energy
  • Stress Strain Relations
  • Two Dimensional

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Structural Dynamics.

Technology Areas

  • Space